An insect growth regulator (IGR) is a substance (chemical) that inhibits the life cycle of an insect. IGRs are typically used to control populations of harmful pests, such as cockroaches or fleas.n insect growth regulator (IGR) is a substance (chemical) that inhibits the life cycle of an insect. IGRs are typically used to control populations of harmful pests, such as cockroaches or fleas.
Nutrition to Help Bone Healing. Dairy products, rich in calcium, can help speed bone recovery. A number of nutrients, most notably calcium, can help speed the process of healing broken or damaged bones. However, one of the most important nutritional moves you can make is preventive in nature. Ensure the health and integrity of your bones by eating a diet rich in the nutrients that bones need to stay strong.
Vitamins can help the body heal wounds Photo Credit Daily Vitamins and Minerals image by LynWatanabe.com from Fotolia.com.Wounds heal in a pattern--the bleeding stops, the body sends special chemicals to the injured site to repair cells, blood vessels regrow and new tissue forms.oods rich in vitamin A include cod liver oil, butter, egg yolks and bright orange vegetables like carrot, pumpkin, squash and sweet potato.